11-11-2010, 11:27 PM
Answer for question number 1
Answer: solution: Let,
p= you practice a lot
g=you get very good marks
Premise1: If you practice a lot, then you get very good marks in mathematics.
p→g
Premise2: You did not practice a lot,
~p
Conclusion: you din not get very good marks.
~g
Premises conclusion
p g p→g ~p ~g
T T T F F
T F F F T
F T T T F
F F T T T
← Critical row
This argument is invalid because
Answer: solution: Let,
p= you practice a lot
g=you get very good marks
Premise1: If you practice a lot, then you get very good marks in mathematics.
p→g
Premise2: You did not practice a lot,
~p
Conclusion: you din not get very good marks.
~g
Premises conclusion
p g p→g ~p ~g
T T T F F
T F F F T
F T T T F
F F T T T
← Critical row
This argument is invalid because